Photo Editing to add my friends to the pics

Hello, I am looking for someone to help with my photo editing needs. I need help to add some of my friends to existing photos and get the results in JPG format. Specifically, I need someone to edit 4 to 7 photos. I'm looking for someone who is skilled in editing photos to add people to existing photos, so that the finished result looks natural and realistic. If you have experience in photo manipulation and retouching, that's a plus. Quality of the results is important to me, so please let me know what your accuracy rate is with this kind of work. Thank you!